Bus-bar supports for end fixation of aluminium tube of rigid bus-bar .. Product #: based on 0 Reviews Regular price: $0.00 $0.00

AIZ-220-K

 

The bus- bar supports of outdoor application AIZ-220-K are used for aluminium tubes supporting of rigid bus- bars at 220 kV voltage and current frequency to 60 Hz in open distribution devices of electric power stations and substations.

Bus-bar supports are made in climatic design UHL, category 1 according to GOST 15543.1-89 and GOST 15150-69, in which:

 

  • altitude above sea level not more 1000 m;
  • thickness of the crust of ice less than 20 mm;
  • wind speed in glaze condition to 15 m/s;
  • wind speed in the absence of glaze to 40 m/s;
  • environment value of temperature of air + 40 °C;
  • environment value of temperature of air - 60°C.

 

Environment not explosive, the content of corrosion-active agents must comply with the atmosphere requirements I and II according to GOST 15150-69.

 

Decoding of bus-bar symbols:

AIZ-X1-X2X3-X4-UHL1,

 

AIZ- trade mark of bus-bar supports,

X1- nominal voltage in kV,

X2- index, which shows standard performance of bus-bar support (K- end fixation of aluminium tube),

X3- conditional diameter of aluminium bus,

X4- pollution degree by GOST9920,

UHL- pollution performance by GOST 15150, installation category by GOST15150.

 

 

Variants of performance are introduced

 

Type of bus-bar support of rigid bus-bar

Diameter of tube of bus-bar, mm

Distance between buses, L, mm

Conditional diameter of bus

Spacing, H, mm

Weight, Kg

AIZ-220-К50-4 UHL1

50/45

870

50

2155

75,0

AIZ-220-К60-4 UHL1

60/54

870

60

2158

75,0

AIZ-220-К70-4 UHL1

70/64

870

70

2185

75,1

AIZ-220-К80-4 UHL1

80/72

870

80

2190

75,2

AIZ-220-К90-4 UHL1

90/80

870

90

2190

75,4

AIZ-220-К100-4 UHL1

100/90

870

100

2205

75,7

AIZ-220-К110-4 UHL1

110/100

870

110

2205

76,5

AIZ-220-К120-4 UHL1

120/110

870

120

2210

77,8

AIZ-220-К130-4 UHL1

130/116

870

130

2220

77,9

AIZ-220-К140-4 UHL1

140/120

870

140

2230

78,0

AIZ-220-К150-4 UHL1

150/136

870

150

2260

78,3

AIZ-220-К170-4 UHL1

170/156

870

170

2280

78,5

AIZ-220-К200-4 UHL1

200/180

870

200

2310

78,7

AIZ-220-К250-4 UHL1

250/230

870

250

2315

78,9

 

 

Main technical characteristics

 

Technical specifications

Value

Rated voltage, kV

220

Maximal working voltage, kV

252

Test voltage of full lightning impulse, kV

950

50%-ing discharge voltage of industrial frequency in polluted and humid condition, kV

- when the specific surface conductivity of the layer of pollution, mkSm

220


10

Minimal breaking load on bend, kN, not less

8

The minimal breaking torque, not less, kN*m

2

Creepage distance, cm

570

The highest peak of the rated short time withstand current (current of electrodynamic resistance), kA

100

Acceptable traction of buses in the horizontal plane of bus-bar supports in the place of bus fixation, N

1480

Dimensions of bottom flange, mm

Diam. 225* 4hols.diam.18


 

 

Bus- bar supports are made on the basis of polymer rod insulators which are intended in applying in bus-bar supports. There was used special design and construction for the bus-bar support. Factory does not recommend applying the standard insulators as insulated supports of distribution devices. Bus-bar supports AIZ are applied for opened distribution devices of electric power stations and substations of alternative currents with 6-220 and kV voltage 50 Hz frequency. Insulators are made in accordance to IEC 62231standard and Technical specifications TS3494-005-59116459-0 ,,Bus-bar supports for the 10-220 kV voltage”.
 
The monolithic core of insulator of bus-bar support eliminates possibility of internal discharge and breakdown, unlike tubes filled with foam, as well as leakage of current in internal cavity and on the wall of tube as consequence of condensation in contrast to hollow tubes. Flanges of bus-bar supports are made from cast high-strength aluminium alloys. Absence of welds in flanges allows applying insulators in the conditions of low temperature in Siberia.
 
Advantages of bus-bar supports AIZ-220-K....UHL1
 
Thanks to the silicone adhesive coating on the insulating body of the bus-bar support useful service life- 30 years; high firmness to influence of acids and alkalis, to an ultra-violet exposure; resistance to erosion and tracking; high hydrophobic properties; light weight; more resistible for acts of vandalism; ensures safety conditions even during installation and exploitation works.
 
The bus-bar support DOES NOT FALL TO THE GROUND in condition of overloads on bend, it just curves. That’s why it eliminates possibility of personal injury.